The Current | Feb 6, 2014 | 27:29
Mark Tewksbury, concussions, the cost of cancer treatment, and human trafficking in Canada's North (Check-in)
Woodpeckers bash their heads again and again without injury. As a follow up to our item on concussions, we hear from a doctor who looks for clues on preventing concussions. Plus Anna Maria speaks with our Friday host Mark Tewksbury about Sochi 2014.